If you’ve been waiting to get your hands on a new Google Chromebook ever since they were unveiled at Google I/O, you’re in luck. You can now order the Samsung Series 5 3G Chromebook or the Acer Cromia Chromebook in both 3G and Wi-Fi flavors at Amazon.com or Best Buy in the US, and exclusively online from Amazon and other online retailers in the UK, France, Germany, Spain, Italy, and the Netherlands.

Both Chromebook models feature Google’s Chrome OS built-in and ready to go. They’re designed to be portable, always-connected workstations, and if you don’t have a connection to the Internet, you’ll find some applications and features are unavailable. Chromebooks aren’t exactly powerhouse systems, which we saw when iFixit took apart a Samsung Series 5 earlier this month. They pack Intel Atom processor, a bit of RAM, and a few gigabytes of storage, sufficient display sizes and external ports to get the job done.

They don’t need a lot of horsepower under the hood because all of your data and applications live on the Web–your Chromebook is simply your gateway to that information. Google and their hardware partners promise all-day battery life, lightweight, and sleek portable notebooks, and an easy, simple computing experience.

The Samsung Chromebook Series 5 3G will set you back $499.99. The Acer Cromia Chromebook retail for $449.99 and $379.99 for the 3G and Wi-Fi versions respectively.